baber/WOPTO huggingface dataset:
Patent GB-581227-A (GB)
Title: Improved holders for bi-pin caps of electric lamps
IPC: H01R33/08
Filed: 1944-08-14
Abstract: 581,227. Lamp-holders. SIEMENS ELECTRIC LAMPS & SUPPLIES, Ltd., and ALDINGTON, J. N. Aug. 14, 1944, No. 15461. [Glass 38 (i)] A holder for a bi-pin cap of an electric lamp, especially a tubular lamp, comprises a plate 1 having a circular aperture 5 communicating with the edge of the plate by means of a slot 6, an insulating boss 9 co-axial with and projecting into the aperture and having a diametral slot 11, a pair of contact members 15, 16, one on each side of the boss, and springs 20 21 arranged adjacent to the contact members, adapted to press the pins into engagement with the contact members when the pins have been passed through the slots 6, 11 and rotated about the boss 9 until they are opposite the contacts. The contacts may be recessed into the boss or may lie on the surface thereof, as shown in Fig. 2, and they are connected at their lower ends to terminals 17. To allow the passage of the pins of the cap, the portions of the contact members crossing the space between the boss and the periphery of the aperture 5 are partially cut away. A stirrup 27, adapted to be swung over the lamp cap-when in position, may be provided.
Patent GB-745165-A (GB)
Title: Improvements in or relating to mountings for splash guards for cookers
Inventor: WORTLEY GEORGE WILLIAM
IPC: F24C15/12
Filed: 1953-06-04
Abstract: 745,165. Splash guards for cookers. MAIN, Ltd., R. & A., and WORTLEY, G. W. June 4, 1954 [June 4, 1953], No. 15469/53. Class 126. A cooker splash guard mounting of the kind having two standards between which is attached a plate constituting the splash guard is characterised in that the standards are provided with extensions which project below the lower edge of the plate and are arranged to be disposed at the back of the back wall of the cooker and means are provided for clamping said extensions to the back wall, which means are arranged to be accessible for manipulating from the front of said back wall. As shown the splash guard 10 is carried by two standards 15 of channel section each of which is provided with an extension 17. Each extension is stiffened by a reinforcing member 18 one end 19 of which overlaps the bottom of the front face of the guard which in its turn overlaps the back wall of the cooker. 20 is a removable hot plate. Each member 18 is of cast iron and is provided at its ends with cups 21, 22, a screw threaded hole 23 extending through the bottom of the former whilst a plain hole 24 extends through the bottom of the latter. The bottom part of each standard is formed with an upraised portion 25 having a hole therein encircled by a washer 26 and a screw 27 is arranged to extend through the washer and said hole to engage the threaded hole 23 in the upper part of the appropriate member 18. The screw is also adapted to extend through a hole in the guard 10 and a hole in the cooker back wall and to receive a wing nut 28. In assembling each standard and reinforcing member a hole lower down in the cooker back wall receives another screw 30 which projects through the plain hole 24 in the member 18 and engages a nut 31 which is welded to the bottom of the channel of the extension 17. In a modified mounting the screws 27 may be replaced by other screws having heads accessible at the front of the cooker back wall in which case another nut is welded to the bottom of each channel section and in order that each member 18 remains attached to its extension 17 a third screw passing through the extension to engage a threaded hole in the member 18 is provided. Secured to the upper part of the guard on either side thereof is a bracket 34 for supporting a plate rack 35 each bracket being formed with a hook portion 41 adapted to be engaged, when the rack 35 is horizontally disposed, by lateral projections 46 protruding from the rack sides 45. Each side 45 extends rearwardly of its projection 46 and is disposed beneath lugs 39, 40, formed on the bracket 34 which thus prevents the rack from tilting downwardly. The rack, however, can be tilted freely in an upward direction to enable the projections 46 to be disengaged from the hooks 41.
Patent GB-679886-A (GB)
Title: Girdle construction
IPC: A41C1/00
Filed: 1950-06-22
Abstract: 679,886. Corsets. KAUPP, E. R. June 22, 1950, No. 15621/50. Class 141. A girdle comprises a lower thigh encircling portion and an upper conical cuff portion extending upwardly from the waistline, the upper and lower portions being stitched together and consisting of vertically extending panels of one-way and two-way stretch elastic fabrics. As shown, the front and rear cuff sections 10, 11, 16, 17 are of two-way stretch material provided with diagonal stiffeners 143, 144, 145, 146 and extend below the waistline at the centre front and back. The lower portion has side panels 12, 15, 18, 20 of two-way stretch fabric and front panels 13, 14 and a rear panel 19 having vertical stretch. The shape of the various panels is described with reference to Figs. 5, 6 (not shown), and they are joined by vertical openwork seams 125 to 131.
Patent GB-161472-A (GB)
Title: An improved fastening device for sash-windows
IPC: E05F11/00
Filed: 1920-06-11
Abstract: 161,472. Baker, G. F. June 11, 1020. Screw fastenings. -In a sash fastener, a thumb - screw c mounted in a threaded socket plate a on the bottom sash, engages a tapped socket b on the top sash or a threaded hole in the outer end of a link d, pivoted to the socket, according to whether the sashes are to be secured in the closed or open position. In the closed position the link d is turned down so as to lie parallel with the thumb-screw c.
Patent GB-258023-A (GB)
Title: Improvements in variable electrical condensers
IPC: H01G5/38
Filed: 1925-06-19
Abstract: 258,023. Banks, J. H., Banks, G. H., and Banks, R. V., (trading as Banks & Sons, J). June 19, 1925. Condensers of the type comprising two helical plates, the convolutions of one of which are arranged so as to alternate with those of the other, are provided with a stationary stalk with an external thread on which is secured a sleeve carrying the moving helix. The frame comprises metal rings B, D and integral pillars C with a spiral groove cut therein to receive the convolutions of the fixed helix H. A hollow stalk L is secured in the insulating plate J and formed with a groove in which engage balls R in a sleeve N carrying the moving helix V. The balls are located by grub screws and springs and the helix V has its turn spaced by square wire Wand clamped by a nut a which surrounds the stalk b and carries a ball g engaging a groove f in the stalk b. When the latter is rotated by knob c, the nut a, sleeve N, and helix V are rotated, and owing to the balls R the helix V is caused to be screwed into the helix H. The stalk b is supported in a bushing in an insulating plate E and drives a dial v through reduction gearing n<1>, q, t, u so that only one turn of 'the dial occurs for the whole range of the knob c. The helices are widely separated to give a low minimum capacity and may be produced by turning or by die casting in which case the helix H and frame would be in one piece, as would also the helix V and sleeve N. Alternatively they may be formed of a series of discs. The Provisional Specification outlines a form in which the moving plate is carried on a spindle screwing into a fixed nut.
Patent GB-502849-A (GB)
Title: Method of winding endless artificial silk threads or filaments on bobbins in artificial silk spinning machines
IPC: B65H55/04
Filed: 1938-05-27
Abstract: 502,849. Yarn packages. HAMEL, E. May 27, 1938, No. 15907. [Class 120 (iii)] A yarn package or bobbin of endless artificial filaments is formed in a series of stepped layers 1, produced by periodically reducing the traverse of the thread guide without varying the position or peripheral speed of the bobbin, each of the layers being shorter in length than the immediately interior layer and having its ends perpendicular to the axis of the bobbin ; the winding of the package is continued with periodic reduction of the traverse of the thread guide until the desired diameter is obtained.
Patent GB-325445-A (GB)
Title: Detachable, washable, and renewable sweat bands, and other headfitting for helmets, and other headgear
IPC: A42C5/02
Filed: 1929-05-23
Abstract: 325,445. Allum, A. E. May 23, 1929. Sweat-bands.-Relates to detachable sweat- 'bands, particularly for helmets, and consists in providing the sweat-band C with spaced holes near one edge and providing correspondingly spaced hooks b' projecting outwardly and upwardly from the rear face of a band B secured to the helmet. The band B may be of aluminium and secured to the helmet by hooks d' engaging 'recesses in the band B and carried by four or more members D which may be sewn to the helmet. A band A of fibre is interposed between the band B and the detachable sweat-band C, the bands A and B being riveted together. At one end of the sweat-band C the holes are spaced apart the distance corresponding to consecutive head sizes, the ends of the band being overlapped for the smaller sizes.
Patent GB-589360-A (GB)
Title: Production of improved halogen-containing polymers and interpolymers
IPC: C08K5/40
Filed: 1944-08-21
Abstract: The softening point and solvent resistance of linear polymers or interpolymers of halogen-substituted monoethylenic compounds are raised by heating them with sulphur or a sulphur-liberating compound, a vulcanization accelerator and a Group II metal oxide for at least 15 minutes at a temperature of at least 100 DEG  C.  In a modification, the vulcanization accelerator is the sulphur-liberating compound.  Polymers specified are those of vinyl chloride, bromide and iodide; a - and b -chloro- and bromo-acrylic acids, b -chloro and bromomethacrylic acids and their esters, amides and nitrates; a - and b -chloro- and bromo-styrene; a -chloro-propylene, b -bromo-propylene, symmetrical and unsymmetrical dichloroethylenes and a - and b -chloro- and bromo-isobutylenes; and their interpolymers with ethylene, isobutylene, styrene, methyl methacrylate and acrylonitrile.  The vulcanization accelerator may be an aniline-butyraldehyde condensation product, tetraethyl thiuram disulphide, zinc dibutyldithiocarbamate, 2 - mercaptothiazoline, mercaptobenzothiazole, diphenyl guanidine, piperidinium pentamethylenedithiocarbamate, tetramethyl-, tetraethyl- or tetrabutyl-thiuram tetrasulphide, di-(phenylmethyl)- or di-(phenylethyl)-thiuram tetrasulphide, dipentamethylenethiuram tetrasulphide.  Suitable metal oxides are zinc, magnesium, calcium and barium oxides.  The mixture may also include fillers, e.g. carbon black, clay, calcium carbonate and blanc fixe, antioxidants, lubricants, blowing agents, plasticisers, e.g. dibutyl phthalate, tricresyl phosphate, the sebacate of ethylene glycol monobutyl ether and acetylated castor oil.  The polymer may be used in the form of an aqueous dispersion.  Examples describe the treatment of (1) an interpolymer of vinyl chloride and vinyl acetate; (3) polyvinyl chloride; (4) after-chlorinated polyvinyl chloride; (5) an interpolymer of vinyl chloride and ethylene. U.S.A. Specifications 1,634,925 and 1,681,717 are referred to.
Patent GB-587475-A (GB)
Title: Improvements in or relating to low temperature catalytic polymerisation
IPC: C08F10/00
Filed: 1943-09-29
Abstract: Halide-alkoxide double salts of Friedel Crafts metals are used as catalysts for polymerizing olefines, the formula being either (MZ)a.-M1(OR) or (MZ)a.M1O(OR) where Z is halogen, R an alkyl radical, and an integer up to 20.  M or M1 may be the same or different metals, titanium, aluminium, zirconium, boron, vanadium, uranium, and silicon being mentioned.  Typical examples are (Al Cl3)2. TiOC4H9 and TiBr4.TiO(OC2H5)2.  The alkoxides may be made by reaction between a halide and an alcohol, and then ground with a halide to form the double salt.ALSO:A catalyst for the low-temperature polymerization of mono-olefines, or mixtures of mono-olefines and polyolefines comprises a halide-alkoxide double salt of one or more Friedel Crafts metals, the formula being either (MZ)a.M1(OR) or (MZ)a.M1O(OR) where Z is a halogen, R an alkyl radical, and a an integer from 1 to 20.  M and M1 may be the same or different metals, titanium, aluminium, zirconium, boron, vanadium, uranium, and silicon being mentioned.  Typical examples are (AlCl3)2.TiOC4H9 and TiBr4.TiO(OC2H5)2.  The catalyst may be used in an inert solvent, e.g. a paraffin with up to 10 carbon atoms or a mono-or poly-alkyl halide with up to 10 carbon atoms. Examples describe the polymerization of isobutylene and of isobutylene-isoprene mixtures containing 1 and 3 per cent of isoprene.
Patent GB-552916-A (GB)
Title: An improvement in or relating to means for connecting agricultural implements to tractors
IPC: A01B59/042
Filed: 1941-12-12
Abstract: 552,916. Couplings for vehicles &c. BROWN TRACTORS, Ltd., D.. KERSEY, A. H., McCAW, W. F., and MEADOWCROFT, F. Dec. 12, 1941, No. 16032. [Class 103 (v)] [Also in Group I] In linkages for connecting agricultural implements to tractors, and which are of the kind comprising a pair of laterally-spaced towing links b connected at their ends to the tractor a and to the implement. and a third central link similarly connected and vertically spaced above the other links to act as a compression member, means such as the springs h are provided to allow extension under an undue draught load of the distance between the points of connection of the towing links b to the tractor and implement. Instead of the springs being interposed between an adjustable collar f on a rod e universally connected to the implement and sliding in guides on the tractor, and an abutment g on the tractor, the springs may be on the implement. In another modification a leaf spring may be centrally mounted on the tractor.
Patent GB-1146441-A (GB)
Title: Method of controlling sulfate-reducing bacteria and algae growth
Inventor: WEHNER DONALD CLIFFORD
Filed: 1966-04-12
Abstract: 1,146,441. Methylene bisthiocyanate. AMERICAN CYANAMID CO. 12 April, 1966, No. 16049/66. Heading C2C. [Also in Divisions A2, A5, Cl, C3 and C5] Methylene bisthiocyanate is prepared by reacting methylene chloride with sodium iodide and hydrochloric acid in acetone and thereafter reacting the resulting product with sodium thiocyanate to give methylene bisthiocyanate.
Patent GB-119734-A (GB)
Title: Improved Knife Sharpener or Steel.
Inventor: LUSSER JOSEF
IPC: B24D15/08
Filed: 1917-11-05
Abstract: 119,734. Lusser, J. Nov. 5, 1917. Pencil-holders.- A knife sharpener or steel a is provided with a handle band serves as a holder for a pencil c. The pencil may be placed in the handle or in the steel when not in use. The tool may be carried in the pocket.
Patent GB-1452470-A (GB)
Title: Microwave tube
IPC: H01J23/027
Filed: 1975-04-18
Abstract: 1452470 Transit-time tubes NIPPON ELECTRIC CO. Ltd. 18 April 1975 [20 April 1974] 16180/75 Heading H1D In a micro-wave tube - e.g. a iclystron or a travelling-wave tube - in which the collector 6 is electrically isolated from the body 4 of the tube by a ceramic seal 5 surrounded by a metallic shield 12 connected at one end to the body or the collector, with an insulator 11 interposed between the shield and the collector on the body, respectively, escape of micro-wave radiation at the seal is further reduced by the provision of a micro-wave lossy body 13 along at least one surface of the insulator layer. The insulator layer 11 is preferably of silicone rubber, and the lossy body 13 of graphite. In further embodiments, lossy bodies may be disposed at each surface of the insulator 11 Fig. 2 & 5, (not shown); the insulator 11 may extend also over the outside of the shield 12 Figs. 2 & 5, (not shown); a comb-like shield 12 may be attached one each to the body 4 and the collector 6, their teeth cooperating in interdigitated fashion and enclosing a zig-zag interposed insulation and lossy member, Fig. 4, (not shown); and the insulator may project axially beyond the shield and have the lossy bodies disposed outside the latter, Fig. 5, (not shown).
Patent GB-457859-A (GB)
Title: Improvements in and relating to the production of phytosterin products
IPC: A61K31/592
Filed: 1935-06-04
Abstract: Phytosterins are extracted from raw materials containing them by a process which comprises steam distillation in a high vacuum and at a high temperature, for example, above 200 DEG  C., followed by a further treatment of the distillate for the isolation of the phytosterins.  The preferred distillation pressure is from 2--20 mms. of mercury.  The preferred further purification treatment of the distillate is fractional crystallization which also effects a separation of the various phytosterins.  This treatment may be followed by a saponification process with alkali and the product extracted with benzene or alcohol.  Raw materials mentioned are alcohol extracts from oil production and the acetic ester or acetone extracts from lecithin purification.  In an example, soya oil is steam distilled in a vacuum of 2--20 mms. of mercury, the distillate dissolved in alcohol, allowed to crystallize, centrifuged and if desired further purified by crystallization. The product so obtained has a phytosterin content of about 25 per cent and may be further purified by a saponification with potash, and crystallization from alcohol.ALSO:Phytosterins are extracted from raw materials containing them by a process which comprises steam distillation in a high vacuum and at a high temperature for example above 200 DEG  C., followed by a further treatment of the distillate for the isolation of the phytosterins.  The prepared distillation pressure is from 2--20 mms. of mercury.  Raw materials mentioned are alcohol extracts from oil production and the acetic ester or acetone extracts from lecithin purification.  In an example soya oil is steam distilled in a vacuum of 2--20 mms. of mercury, the distillate dissolved in alcohol, allowed to crystallize, centrifuged, and if desired further purified by crystallization.  The product so obtained has a phytosterin content of about 25 per cent.
Patent GB-1459966-A (GB)
Title: Electrical inductors or transformers
IPC: H01F27/06
Filed: 1975-04-21
Abstract: 1459966 Inductors PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd 21 April 1975 [24 April 1974] 16379/75 Heading HIT An electrical inductor or transformer comprises an H-shaped ferromagnetic core 1 partially encapsulated in a synthetic plastics coil former 3 comprising a coil can 9, flanges 13 and trough-shaped portions 17, the can 9 being grooved (11, Fig. 3, not shown) on its underside and the portions 17 having grooves 25 in the walls 23 to reduce stresses on the core due to shrinkage on moulding, and the flanges 13 having recesses (15) for the passage of connection wires to connection pins 19 moulded into the portions 17. Core portion 5 is fitted over the flanges 13 on to the core 1 after the windings and any additional insulation (not shown) have been fitted. The grooves (11), 25 may extend through the former to the surface of core.
Patent GB-1347879-A (GB)
Title: Feeding means for copying machines
IPC: G03B27/14
Filed: 1971-04-21
Abstract: 1347879 Web feeds for copying machines GAF CORP 21 May 1971 [22 May 1970] 16440/71 Heading G2A A copying machine comprises drive means 22 for feeding originals 16 past first and second sensing means e.g. switches 24, 26; means e.g. clutch 32 and drive 34, for drawing copy paper from a roll 42 in reponse to detection of the backing edge of the original by switch 24; means e.g. a knife 46 operated by a solenoid 44, for cutting a length of copy paper in response to the detection of the trailing edge of the original by switch 26, the relative positions of the switches 24 and 26 being automatically adjustable in a direction parallel to the direction of travel of the original as a function of the speed of said drive means 22. Drive means 22, and also the drive 34 for the copy paper are powered by a main motor 38. Any variation in the speed of motor 38 e.g. speeding up, changes the input to a device 84 resulting in the movement of a link 83. This movement causes a lever 70 to pivot about 72, pulling tension members 64, 76, which are in the form of fine wires, and interconnect the lever with two parallel plates 56, 58 supported on leaf springs 60, 62 and carrying switches 24, 26. When pulled the plates, and thus the switches, move against the force of the leaf springs to the positions shown in dashed lines, switch 26 moving to a greater extent than switch 24. Since the response time of clutch 32 is about half that of the solenoid 44, the linear displacement of switch 24 is about half that of switch 26, ensuring that the copy paper length accurately matches that of the original over the entire speed range of motor 38.
Patent GB-1177853-A (GB)
Title: Halogenated Propanes
IPC: C07C17/10
Filed: 1967-04-11
Abstract: 1,177,853. Inhalation anaesthetics. E. R. SQUIBB & SONS, Inc. 11 April, 1967 [21 April, 1966], No. 16477/67. Heading A5B. [Also, in Division C2] An anaesthetic composition comprises 1, 1, 1, 2, 2-pentafluoro-3, 3-di-bromopropane as active ingredient. The compound may be administered with a source of oxygen, such as air.
Patent GB-686157-A (GB)
Title: Improvements in or relating to chucks
IPC: B23B31/163
Filed: 1951-07-11
Abstract: 686,157. Chucks. HJELMBLAD, K. W. J. July 11, 1951 [Aug. 8, 1950], No. 16479/51. Drawings to Specification. Class 83 (iii). The scroll-engaging teeth of a scroll-plate chuck have, on one or both flanks, thickened portions which extend across less than one-third of the width of the teeth and only the thickened portions are ground or otherwise machined to fit in the scroll-plate groove.
Patent GB-935223-A (GB)
Title: An improved electromechanical transducer
Inventor: FIELDEN JOHN ERNEST
IPC: H04R3/00
Filed: 1961-05-08
Abstract: 935,223. Measuring displacement electrically. FIELDEN ELECTRONICS Ltd. June 26, 1962 [May 8, 1961], No. 16580/61. Class 40 (1). Apparatus for measuring longitudinal displacement comprises a differential transformer 3 (Fig. 1), connected between the input and output of an amplifier 1, causing the amplifier to oscillate, the position of the displaceable core 9 determining which secondary winding 6 or 7 produces the larger output voltage. The secondary windings 6, 7, shunted by Zener diodes 12, feed into a load resistance 13 through rectifiers 14, and the potential across output terminals 16, 16 indicates by its magnitude and polarity the magnitude and direction of the displacement of the core 9 from its central position.